ASTROSAT CZTI

Data Quality Report

Orbit 09049

Creation date: 2024-06-27T15:40:31.398204
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G07_027T01_9000001258_09049cztM0_level2.evt modeM0/AS1G07_027T01_9000001258_09049cztM0_level2_quad_clean.evt
Size (bytes)302,503,68054,691,200
Size288.5 MB 52.2 MB
Events in quadrant A2,298,496346,321
Events in quadrant B2,100,508349,244
Events in quadrant C1,982,874339,047
Events in quadrant D2,492,462325,392

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09977504
B09359532
C09168522
D010824598

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0906
B0906
C0908
D0902

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4215170.403321%
B4199270.643010%
C4203150.356888%
D4203801.903402%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 5755 4405 0 0 0.00% 0.00%
B 5755 4397 4 4 0.07% 0.09%
C 5754 4406 4 4 0.07% 0.09%
D 5755 4397 57 57 0.99% 1.30%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 8 5 102600 944.21 529 520 108.1
A 1 162 80916 743.64 529 520 108.1
A 1 178 21183 191.13 529 520 108.1
B 6 51 17608 169.45 526 514 100.9
B 10 252 12543 119.24 526 514 100.9
B 12 111 10374 97.74 526 514 100.9
C 3 254 17052 141.21 504 506 117.2
C 13 61 3770 27.86 504 506 117.2
C 3 202 1287 6.67 504 506 117.2
D 6 225 235386 1938.04 500 488 121.2
D 2 14 132241 1087.04 500 488 121.2
D 1 52 90206 740.22 500 488 121.2

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter